> On Mon, Aug 04, 2008 at 06:48:22PM +0530, ext Gadiyar, Anand wrote: > > MUSB RTL v1.4 has a hardware issue which results in a DMA controller > > hang when TX and RX DMA channels are simultaneously enabled. This > > affects at least OMAP2430 and OMAP34XX. > > > > Since RX transfers are in Mode 0 and anyway result in one DMA interrupt > > per packet, we can use System DMA to unload the RX fifos. MUSB DMA can > > be used for all TX channels as before. > > > > Tested with full-duplex TX and RX transfers using g_ether. Runs for 24 > > hours without a hang. Without this patch, the hang occurs within minutes. > > This patch is not applying against linux-omap musb neither musb on > greg's queue. Could you please refresh it ? It's better to use the > version on greg's queue, if it fails for linux-omap I can prepare a > clean patch to avoid conflicts later. > > -- > balbi > Okay! I had prepared this Friday evening and it seemed to apply for me. I'll check again and re-send. - Anand -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
